Create devcontainer.json (#467)

Author: fbnrst

.devcontainer/devcontainer.json

@@ -0,0 +1,13 @@
+{
+  "name": "Vitessce Python Dev",
+  "image": "mcr.microsoft.com/devcontainers/python:3.12",
+  "postCreateCommand": "pip install uv && uv sync --extra dev --extra docs --extra all",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "ms-python.vscode-pylance"
+      ]
+    }
+  }
+}